Cut thread leaving a 30cm tail. Pull the tail through the remaining sts several times, then fasten off.

Ribbing:

Unwind the yarn used to cast on and pick up the open stitches. Use 4mm needles.

R1-10: k1tbl, p1.

Bind off.

Make a pompom and attach it to the top of the hat with the help of a button (pull the tails of the pompom through the hole on the top of the hat, then pull each tail through a hole of the button and tie a knot) or simply sew it on. You can do without a pompom but I find that it looks really great on this hat.